Air Safety

Radon Testing & Mitigation in Calgary

Testing and sub-slab depressurization systems that reduce dangerous radon gas, which is common in Calgary homes, to safe levels.

Get a Free Quote Call (587) 550-0000

Radon Testing & Mitigation Done Right in Calgary

Radon Testing & Mitigation service in Calgary, AB

If you need radon testing or mitigation in Calgary, you are addressing a genuine health risk that many homeowners never think about. Radon is a colorless, odorless radioactive gas that seeps up from the soil into basements and lower levels. Health Canada identifies it as the second leading cause of lung cancer after smoking, and Alberta has some of the highest residential radon levels in the country.

Because waterproofing and radon both come up through the foundation, sealing and sub-slab work go hand in hand. We test your home, and where levels are elevated we install a sub-slab depressurization system that vents radon safely outside, typically cutting levels dramatically.

What's Included

Health Canada compliant long-term radon testing guidance
Diagnostic assessment of foundation and slab
Sub-slab depressurization system design
Suction pit, sealed piping, and inline radon fan
Sealing of slab cracks and sump lids that let radon in
Post-mitigation testing to confirm reduced levels

Common Signs You Need This Service

You have never tested your home for radon
A test result at or above 200 becquerels per cubic metre
A finished or occupied basement with no mitigation
A new baby, home purchase, or basement renovation
A sump or slab cracks that provide a radon pathway
Neighbours with known elevated radon results

Our Process

Test the homeWe guide a Health Canada compliant long-term test to measure your actual radon level.
Assess the foundationIf levels are high, we assess the slab and soil to design the system.
Install the systemWe create a suction point under the slab and run sealed pipe to an inline fan.
Seal entry pointsWe seal cracks and the sump lid so the system depressurizes the soil effectively.
Re-testWe test again after installation to confirm radon has dropped to a safe level.

Methods & Options Compared

Radon reduction starts with testing. Where mitigation is needed, sub-slab depressurization is the proven method.

Step	What it does	Outcome
Long-term test	Measures radon over 90+ days	Reliable reading of your true level
Sub-slab depressurization	Vents soil gas outside before it enters	Large, lasting reduction
Seal and support	Closes cracks and sump entry points	Improves system efficiency

What Affects the Price

Radon mitigation is a modest investment for the health benefit. Price depends on:

Home size and foundation type
Number of suction points required
Length and routing of the vent pipe and fan location
Sealing of slab cracks, cold joints, and sump lids
Post-mitigation confirmation testing

Local Calgary Considerations

Alberta consistently records some of the highest indoor radon levels in Canada, and Calgary is no exception. Studies have found a substantial share of Calgary homes above the Health Canada action level of 200 becquerels per cubic metre. Because our homes are sealed tight against cold winters, radon that enters tends to accumulate, which makes testing especially important here.

Why Choose Us

Why Calgary Trusts Waterproofing Pros Calgary for Radon Testing & Mitigation

2nd

A Real Health Risk

Radon is the second leading cause of lung cancer in Canada after smoking. Testing and mitigation is one of the most meaningful health upgrades a Calgary homeowner can make, especially with a finished basement.

Proven

Sub-Slab Depressurization Works

The systems we install are the method Health Canada recommends and routinely reduce radon by well over 80 percent. We confirm the drop with a follow-up test, not just a promise.

Combined

Done With Your Waterproofing

Radon and water share the same entry points through the slab and sump. Addressing both together seals your foundation once and avoids paying twice for overlapping work.

Social Proof

What Our Customers Say

★★★★★

Water was coming in along the basement floor every spring. They installed an interior weeping tile system and sump, explained every step, and the basement has stayed bone dry since. No pressure, honest pricing.

Kendall M.Calgary NW

★★★★★

Had two foundation cracks injected. Crew showed up on time, sealed everything in a morning, and cleaned up after. Fifteen years transferable warranty gave us real peace of mind.

Dave R.Airdrie

★★★★★

After the spring melt our crawl space smelled musty and damp. They encapsulated it and added a sump. Huge difference in air quality upstairs and our energy bill actually dropped.

Priya S.Cochrane

FAQ

Frequently Asked Questions

How dangerous is radon in Calgary?

Radon is the second leading cause of lung cancer in Canada, and Alberta has some of the highest residential levels in the country. A significant share of Calgary homes test above the Health Canada action level, so testing is strongly recommended regardless of neighbourhood.

How is radon tested?

The reliable method is a long-term test of at least 90 days, which averages out daily and seasonal swings. We guide you through a Health Canada compliant test so you get an accurate reading before deciding on mitigation.

What is sub-slab depressurization?

It is the standard radon mitigation system. A suction point is created under the basement slab and connected by sealed pipe to an inline fan that draws soil gas from beneath the home and vents it safely outside before it can enter.

How much can mitigation reduce radon?

A properly installed system commonly reduces radon by more than 80 percent, bringing most homes well below the action level. We re-test after installation to confirm the result.

Should I do radon work with waterproofing?

It makes sense to. Water and radon enter through the same cracks, joints, and sump. Sealing and depressurizing together is more efficient and cost effective than treating each separately.